grotty

The word 'grotty' is a British slang term originating in the 1960s. It is a contraction of the word 'grotesque', which itself entered English from the French 'grotesque', derived from the Italian 'grottesca'. The Italian term referred to a style of ancient Roman mural painting discovered in excavated rooms ('grotte' or caves), characterized by fantastical and distorted human and animal forms. Over time, 'grotesque' evolved to mean anything distorted, bizarre, or repulsively ugly, with 'grotty' emerging as its colloquial diminutive to describe something shabby, unpleasant, or of low quality.

The word is a simplex loanword and cannot be meaningfully segmented into productive morphemes within modern English spelling.